#11239: GHC HEAD: cannot bootstrap HEAD with HEAD -------------------------------------+------------------------------------- Reporter: heisenbug | Owner: Type: bug | Status: new Priority: high | Milestone: 8.0.1 Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Building GHC | Unknown/Multiple failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by gkaracha): If it is related to #11195, I may have the solution real soon. Since the additional expressivity about guards came with a big price, we will have a flag (or more) for more precise control over how hard the checker tries to reason about pattern matching. At the moment, with `-Wall` we enable the whole check, no matter what the cost is. I expect to have the patch before the end of the week, and I hope it fixes this along with #11195. If you have any more information about the file that causes the problem please let me know! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11239#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler